A method of dynamically absorbing a shock in a power shaft, especially in a critical excess shaft, and a shock absorption architecture that implements the method.

Title:

A method of dynamically absorbing a shock in a power shaft, especially in a critical excess shaft, and a shock absorption architecture that implements the method.

Document Type and Number:

Japanese Patent JP6298632

Kind Code:

B2

Abstract:

An architecture making it possible to provide sufficient absorption of shocks for a power shaft while maintaining rigidity at front bearings so as to not compromise meshing of power teeth of a drive pinion. A compressible dynamic shock absorption is provided in alignment with a downstream shock absorber of an additional meshing. An assembly for dynamically absorbing shocks for a power shaft includes upstream and downstream bearings including power rollers mounted on two casings and flanking a speed-reducing teeth meshing. The downstream bearing is coupled to at least one additional roller bearing associated with a compressible shock absorber to form a downstream shock absorber axially offset relative to the upstream bearing opposite the teeth meshing. Both downstream bearings are connectable by a flexible frame mounted on the common casing. The architecture can be used for power-transmission shafts, for example supercritical shafts in turbine engines.

Inventors:

Caseau, David
Bochier, Sylvain Pierre

Application Number:

JP2013517457A

Publication Date:

March 20, 2018

Filing Date:

June 29, 2011

Export Citation:

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Assignee:

Saffron Helicopter Engines

International Classes:

F16C27/00; F16C19/02; F16C19/22; F16C35/07

Domestic Patent References:

JP2009270612A
JP2000346063A

Foreign References:

US20040022463

Attorney, Agent or Firm:

Kawaguchi International Patent Office

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